The super 12s are sounding pretty darn good in my opinion. They are a little light in the lowest bass octaves. However, I have already noticed a difference from day one with the bass extension. I currently have 20-30 hours on them. The mid range is absolutely amazing! I have not really noticed any high frequency harshness. I actually find these less harsh in the higher frequencies than my previous pair of speakers (mirage frx-5's). I'm also still playing around with placement to dial in the soundstage.

I'm glad you found the bass to your liking.I'm sure the acoustic foam behind the speakers plays a role in it.wait until you get 200 hours on them, they'll be giving out more bass than you thought possible from a full range driver, at least that's my experience even in a live room like mine.RegardsNick

Just and idea about your speakers. If you feelthe bass is compromised, you could try either a piece of cork or some light felt instead of the foam behind the driver. Stick them on with double faced tape. If you don't like it -- easy to remove.

I've had good luck with either the sheet cork or felt. You get some taming of the resonances, but not too much like foam sometimes provides.